Auxiliary tool for lamination combination of photovoltaic modules

By using centrally symmetrically arranged L-shaped rods and telescopic adjustment components in the photovoltaic module lamination combination auxiliary tooling, the problems of cumbersome operation and poor flexibility of traditional tooling are solved, and a high-precision and high-efficiency photovoltaic module lamination combination is achieved.

CN119521838AInactive Publication Date: 2025-02-25JIANGSU ZHIJIN INNOVATIVE ENERGY TECH CO LTD
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Patent Information

Application Number
CN202411682246.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-11-18
Filing Date
2024-11-22
Publication Date
2025-02-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The traditional photovoltaic module lamination combination auxiliary tooling is cumbersome, with poor flexibility and adjustability, making it difficult to meet the needs of high precision and high efficiency in the production of modern photovoltaic modules.

Method used

The L-shaped front right-angle rod and rear right-angle rod are arranged symmetrically in the center, combining the left and right telescopic rod components and adjustment components to form a flexible and adjustable box structure to adapt to photovoltaic modules of different sizes and aspect ratios.

Benefits of technology

It realizes flexible adjustment and high-precision adjustment of auxiliary tooling, improves versatility and adjustment fluency and stability, avoids jamming, and ensures the peripheral compression effect of photovoltaic modules.

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Abstract

The invention discloses an auxiliary tool for photovoltaic module lamination combination, and belongs to the technical field of photovoltaic panel production. Comprising an L-shaped front right-angle rod and an L-shaped rear right-angle rod which are symmetrically arranged to form a square frame structure; the left telescopic rod assembly is connected between the short side of the rear right-angle rod and the long side and the short side of the front right-angle rod. The right telescopic rod assembly is connected between the short side of the front right-angle rod and the long side of the rear right-angle rod; according to the left telescopic rod assembly, a left sliding rod is installed on the short edge of a rear right-angle rod in a sliding mode in the length direction of the short edge of the rear right-angle rod; the left sliding block is slidably installed on the long edge of the front right-angle rod in the length direction of the long edge of the front right-angle rod. The left sliding block is fixedly connected with one end of the left sliding rod close to the long side of the front right-angle rod. The front right-angle rod and the rear right-angle rod are arranged in a central symmetry mode, the left telescopic rod assembly and the right telescopic rod assembly are combined, flexible adjustment of a square frame structure is achieved, the auxiliary tool can adapt to photovoltaic assemblies of different sizes and length-width ratios, and the universality of the auxiliary tool is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic panels, and in particular to an auxiliary tooling for laminating and assembling photovoltaic modules. Background Art

[0002] In the production process of photovoltaic modules, lamination and assembly processing is undoubtedly a crucial process link. The core goal of this process is to use precise lamination technology to tightly combine multiple key components such as photovoltaic cells, glass, backplane, etc., so as to create a photovoltaic module with complete structure and excellent performance. In the lamination process, the periphery of the photovoltaic module is very important. Auxiliary tooling is needed to fully press the periphery of the photovoltaic module to prevent quality problems such as wrinkles or deformation in the middle of the photovoltaic module under high temperature and high pressure lamination environment.

[0003] Traditional clamping auxiliary tooling usually uses four detachable rods, and the size of the tooling is adjusted by disassembly and reassembly; this design is cumbersome to operate, and has poor flexibility and adjustability, and it is difficult to meet the urgent needs for high precision and high efficiency in modern photovoltaic module production. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the present invention provides a flexible and adjustable auxiliary tooling for laminating and assembling photovoltaic modules.

[0005] The present invention adopts the following technical solution: an auxiliary tooling for laminating and assembling photovoltaic modules, comprising:

[0006] L-shaped front right-angle rods and rear right-angle rods, the front right-angle rods and rear right-angle rods are centrally symmetrically arranged to form a square frame structure;

[0007] A left telescopic rod assembly connected between the short side of the rear right-angle rod and the short side of the long side of the front right-angle rod;

[0008] The right telescopic rod assembly is connected between the short side of the front right-angle rod and the long side of the rear right-angle rod; the right telescopic rod assembly and the left telescopic rod assembly are centrally symmetrical;

[0009] Wherein, the left telescopic rod assembly comprises:

[0010] A left sliding rod is slidably mounted on the short side of the rear right-angle rod along the length direction of the short side of the rear right-angle rod;

[0011] The left sliding block is slidably installed on the long side of the front right-angle rod along the length direction of the long side of the front right-angle rod; the left sliding block is fixedly connected to one end of the left sliding bar close to the long side of the front right-angle rod.

[0012] The invention further comprises: a lower side surface of the short side of the rear right-angle rod is provided with a downward sliding groove; and guide grooves are provided on the inner walls on both sides of the downward sliding groove;

[0013] The left slide bar is slidably mounted in the lower slide groove, and both sides of the left slide bar are provided with guide bars slidably matched with the guide groove.

[0014] The upper side surface of the left slide bar is provided with an avoidance groove arranged along the length direction of the left slide bar.

[0015] The upper side surface of the long side of the front right-angle rod is provided with a "convex"-shaped upper slide groove, and a raised guide rail is provided in the middle of the upper slide groove;

[0016] The left sliding block is arranged in the upper sliding groove, and two rows of guide wheels are rotatably mounted on the lower side of the left sliding block; the two rows of guide wheels are respectively and rollingly connected to the two sides of the guide rail.

[0017] The left slider has a T-shaped stop at one end close to the left slider, and the end of the left slider is buckled in the T-shaped stop and fixedly connected to the left slider by bolts.

[0018] A left adjustment component is connected between the short side of the rear right-angle rod and the long side of the front right-angle rod;

[0019] A right adjustment component is connected between the short side of the front right-angle rod and the long side of the rear right-angle rod, and the right adjustment component and the left adjustment component are centrally symmetrical;

[0020] Wherein, the left adjustment component includes:

[0021] A front guide rod, one end of which is fixed to the upper side surface of the long side of the front right-angle rod and the other end of which extends to the left;

[0022] A rear guide rod, one end of which is fixed on the upper side surface of the short side of the rear right-angle rod, and the other end of which extends to the left; the rear guide rod is parallel to and opposite to the front guide rod;

[0023] A sliding sleeve, the sliding sleeve being mounted on the front guide rod; the sliding sleeve is threadedly connected with a fixing screw for positioning the sliding sleeve on the front guide rod;

[0024] A pair of connecting rods parallel to each other, one end of which is hinged on the sliding sleeve, and the other end of which is hinged on the rear guide rod, the two connecting rods and the sliding sleeve and the rear guide rod form a parallelogram structure.

[0025] A limiting mechanism is provided between the connecting rod close to the front right-angle rod and the rear guide rod;

[0026] The limiting mechanism comprises:

[0027] A guide block is slidably mounted on the rear guide rod along the length direction of the rear guide rod; the guide block is opposite to the sliding sleeve in front and back;

[0028] A linkage rod has one end hinged to the middle of the connecting rod close to the front right-angle rod, and the other end hinged to the guide block.

[0029] The upper side of the rear guide rod is provided with a stepped guide groove, and racks are respectively fixed on both sides of the guide groove;

[0030] The guide block is slidably installed in the guide groove, and a gap is left between the two sides of the guide block and the racks on the corresponding sides; a bistable spring sheet is fixed on each side of the guide block, and one end of the bistable spring sheet away from the guide block has a locking tooth that cooperates with the rack;

[0031] When the bistable spring piece is in the first stable state, the locking teeth at the end of the bistable spring piece fit into the rack on the corresponding side;

[0032] When the bistable spring piece is in the second stable state, the locking teeth at the end of the bistable spring piece are disengaged from the rack on the corresponding side.

[0033] Handles are fixed at the corners of the front right-angle rod and the rear right-angle rod respectively.

[0034] The beneficial effects of the present invention are:

[0035] Through the central symmetrical arrangement of the front right-angle rod and the rear right-angle rod, combined with the left and right telescopic rod components, the flexible adjustment of the frame structure is achieved, which can adapt to photovoltaic modules of different sizes and aspect ratios, and improve the versatility of the auxiliary tooling;

[0036] The displacement of the front right-angle rod and the rear right-angle rod is limited by the left and right adjustment components. The parallelogram structure formed by the front guide rod, the rear guide rod and the connecting rod ensures the parallelism of the front right-angle rod and the rear right-angle rod during the adjustment process, so that the front right-angle rod can only maintain horizontal movement, avoiding the jamming phenomenon and improving the smoothness and stability of the adjustment;

[0037] The guide block and the sliding sleeve can be locked individually or fully opened, making the adjustment method of the front right-angle rod more flexible and diverse. Different adjustment and locking methods can be selected according to actual needs to ensure the size and shape of the frame structure are stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of an auxiliary tooling for laminating and assembling photovoltaic modules.

[0039] Figure 2 The present invention is a top view of an auxiliary tooling for laminating and assembling photovoltaic modules.

[0040] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0041] Figure 4 for Figure 3 Enlarged view of point B in the middle (the guide block is in the locked state).

[0042] Figure 5 for Figure 4 Schematic diagram of the structure when the middle guide block is in the unlocked state.

[0043] Figure 6 This is an exploded view of the left telescopic rod assembly.

[0044] Figure 7 This is an exploded view of the left adjustment component.

[0045] Description of reference numerals:

[0046] 1. Front right angle rod; 11. Upper slide; 111. Guide rail;

[0047] 2. rear right angle rod; 21. lower slide groove; 211. guide groove;

[0048] 3. Left telescopic rod assembly; 31. Left sliding rod; 311. Guide bar; 312. Avoidance groove; 32. Left sliding block; 321. Guide wheel;

[0049] 4. Right telescopic rod assembly;

[0050] 5. Left adjustment assembly; 51. Front guide rod; 52. Rear guide rod; 521. Guide groove; 522. Rack; 53. Sliding sleeve; 531. Fastening screw; 54. Connecting rod;

[0051] 6. Right adjustment component;

[0052] 7. Limiting mechanism; 71. Guide block; 711. Bistable spring; 712. Locking tooth; 72. Linkage rod;

[0053] 8. Handle. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] Embodiment 1:

[0056] like Figures 1 to 3 As shown, the present invention provides an auxiliary tooling for laminating and assembling photovoltaic modules. Figure 2Taking the top view shown as a reference, the auxiliary tooling mainly includes two L-shaped front right-angle rods 1 and rear right-angle rods 2, which are arranged symmetrically to form a square frame structure. Among them, the long side of the front right-angle rod 1 exceeds the short side of the rear right-angle rod 2, and the long side of the rear right-angle rod 2 exceeds the short side of the front right-angle rod 1. Handles 8 are fixed at the corners of the front right-angle rod 1 and the rear right-angle rod 2, respectively, and the positions of the front right-angle rod 1 and the rear right-angle rod 2 are adjusted by the handles 8 to control the size of the square frame structure.

[0057] In order to close the square frame structure, a left telescopic rod assembly 3 is connected between the short side of the rear right-angle rod 2 and the long side of the front right-angle rod 1; a right telescopic rod assembly 4 is connected between the short side of the front right-angle rod 1 and the long side of the rear right-angle rod 2, and the right telescopic rod assembly 4 and the left telescopic rod assembly 3 are centrally symmetrical.

[0058] Combination Figures 1 to 3 ,as well as Figure 6 As shown, the left telescopic rod assembly 3 is taken as an example:

[0059] The left telescopic rod assembly 3 includes a left slide bar 31 and a left slider 32 fixed to the end of the left slide bar 31. A lower slide groove 21 is provided on the lower side surface of the short side of the rear right-angle rod 2, and the left end of the lower slide groove 21 is connected to the end surface of the short side of the rear right-angle rod 2. Guide grooves 211 with arc-shaped cross sections are provided on the inner walls on both sides of the lower slide groove 21. The left slide bar 31 is slidably installed in the lower slide groove 21, and the left end of the left slide bar 31 extends out of the lower slide groove 21. There are guide bars 311 with arc-shaped cross sections on both sides of the left slide bar 31, and the guide bars 311 are slidably fitted in the guide groove 211 to prevent the left slide bar 31 from detaching from the lower slide groove 21, thereby ensuring the parallelism between the left slide bar 31 and the short side of the rear right-angle rod 2; when the rear right-angle rod 2 is pressed on the side of the photovoltaic module, the left slide bar 31 can also provide a stable downward force.

[0060] The upper side surface of the long side of the front right angle bar 1 is provided with a "convex" shaped upper slide groove 11, and the left slider 32 is slidably arranged in the upper slide groove 11. The end of the upper slide groove 11 does not penetrate to the end of the long side of the front right angle bar 1 to prevent the left slider 32 from detaching from the long side of the front right angle bar 1. A raised guide rail 111 is provided in the middle of the upper slide groove 11, and two rows of guide wheels 321 are rotatably installed on the lower side surface of the left slider 32, and the two rows of guide wheels 321 are respectively connected to the two sides of the guide rail 111 in a rolling manner. The right end of the left slider 32 has a T-shaped stop, and the end of the left slider 31 is buckled in the T-shaped stop and fixedly connected to the left slider 32 by bolts.

[0061] When in use, the front right-angle rod 1 is moved forward and backward and / or left and right in the horizontal plane with the rear right-angle rod 2 as a reference, and the size and shape of the frame structure surrounded by the front right-angle rod 1 and the rear right-angle rod 2 are adjusted to adapt to photovoltaic modules of different sizes and aspect ratios;

[0062] The left slide bar 31 slides in the lower slide groove 21, and the stability and parallelism of the sliding are guaranteed by the cooperation between the guide bar 311 and the guide groove 211; at the same time, the left slide bar 32 slides in the upper slide groove 11, and the use of the guide wheel 321 reduces friction and improves the smoothness of adjustment; in the process of adjusting the front right-angle rod 1, the left slide bar 32 can slide along the long side of the front right-angle rod 1, and can pull the left slide bar 31 to slide along the short side of the rear right-angle rod 2, so that the left slide bar 31 is always connected between the short side of the rear right-angle rod 2 and the long side of the front right-angle rod 1; similarly, under the action of the right telescopic rod assembly 4, the long side of the rear right-angle rod 2 can also always be connected with the short side of the front right-angle rod 1, so that the front right-angle rod 1 and the rear right-angle rod 2 always form a complete frame structure, which can completely cover the periphery of the photovoltaic module.

[0063] Embodiment 2:

[0064] Based on the above embodiment 1, Figures 1 to 3 ,as well as Figure 7 As shown, a left adjustment component 5 is connected between the short side of the rear right-angle rod 2 and the long side of the front right-angle rod 1; a right adjustment component 6 is connected between the short side of the front right-angle rod 1 and the long side of the rear right-angle rod 2, and the right adjustment component 6 and the left adjustment component 5 are centrally symmetrical. The left adjustment component 5 and the right adjustment component 6 are used to limit the displacement of the front right-angle rod 1 and the rear right-angle rod 2, so that the front right-angle rod 1 can maintain translational movement to avoid jamming, thereby improving the smoothness when adjusting the position of the front right-angle rod 1.

[0065] Combination Figures 1 to 3 As shown, the left adjustment component 5 is taken as an example:

[0066] The left adjustment assembly 5 includes a front guide rod 51 and a rear guide rod 52. The right end of the front guide rod 51 is fixed to the upper side of the long side of the front right angle rod 1 by bolts, and the other end extends to the left. The right end of the rear guide rod 52 is fixed to the upper side of the short side of the rear right angle rod 2 by bolts; the upper side of the left slide bar 31 is provided with an avoidance groove 312 arranged along the length direction of the left slide bar 31 to avoid interference between the left slide bar 31 and the bolt at the right end of the rear guide rod 52. The rear guide rod 52 is parallel to the front guide rod 51 and faces each other front and back.

[0067] A sliding sleeve 53 is slidably mounted on the front guide rod 51, and a fastening screw 531 is threadedly connected to the sliding sleeve 53. The inner end of the fastening screw 531 abuts against the front guide rod 51 to position the sliding sleeve 53 on the front guide rod 51. Two connecting rods 54 are parallel to each other and have equal lengths. One end of the two connecting rods 54 is hinged on the sliding sleeve 53, and the other end is hinged on the rear guide rod 52. The two connecting rods 54, the sliding sleeve 53, and the rear guide rod 52 form a parallelogram structure. During the adjustment process of the front right-angle rod 1, the parallelogram structure can keep the front guide rod 51 and the rear guide rod 52 parallel, that is, the front right-angle rod 1 can only move horizontally relative to the rear right-angle rod 2. Similarly, the right adjustment component 6 also forms the above-mentioned restriction on the front right-angle rod 1 on the right side to ensure that the front right-angle rod 1 can move stably.

[0068] Embodiment three:

[0069] Based on the above embodiment 2, combined with Figures 1 to 5 ,as well as Figure 7 As shown, after the sliding sleeve 53 is locked, the connecting rod 54 still has a tendency to rotate, which is not conducive to the stability of the front right angle rod 1 and the rear right angle rod 2. Therefore, a limiting mechanism 7 is set between the inner connecting rod 54 and the rear guide rod 52. The limiting mechanism 7 can be linked with the sliding sleeve 53 or locked separately.

[0070] A stepped guide groove 521 is provided on the upper side of the rear guide rod 52. Both sides of the guide groove 521 are higher than the middle of the guide groove 521. Racks 522 are fixed on both sides of the guide groove 521. One end of the linkage rod 72 is hinged to the middle of the connecting rod 54, and the other end is hinged to the middle of the guide block 71. The guide block 71 is slidably installed in the middle of the guide groove 521. The guide block 71 and the sliding sleeve 53 are opposite to each other in front and back. There is a gap between the two sides of the guide block 71 and the racks 522 on the corresponding side. When the guide block 71 slides in the guide groove 521, it will not interfere with the racks 522.

[0071] Combination Figure 3 and Figure 4 As shown, a notch is respectively provided on both sides of the guide block 71, and a bistable spring piece 711 is fixed in the notch by screws. The end of the bistable spring piece 711 away from the guide block 71 has a locking tooth 712 that cooperates with the rack 522;

[0072] When the bistable spring 711 is in the first stable state, Figure 4 As shown, the locking teeth 712 at the end of the bistable spring piece 711 cooperate and embed into the rack 522 on the corresponding side, thereby locking the guide block 71, so that the connecting rod 54 and the rear guide rod 52 are maintained at a predetermined angle;

[0073] When the bistable spring 711 is in the second stable state, Figure 5As shown, the locking tooth 712 at the end of the bistable spring 711 is disengaged from the rack 522 on the corresponding side, and the guide block 71 can slide freely in the guide groove 521, so that the angle between the connecting rod 54 and the rear guide rod 52 is adjustable;

[0074] The guide block 71 and the sliding sleeve 53 can be locked individually or completely opened, so that the front right-angle rod 1 has different adjustment methods. When the guide block 71 and the sliding sleeve 53 are both locked, the front right-angle rod 1 will not be able to move relative to the rear right-angle rod 2, ensuring that the front right-angle rod 1 and the rear right-angle rod 2 form a square structure of stable size.

[0075] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An auxiliary tooling for laminating and assembling photovoltaic modules, characterized in that: include: L-shaped front right-angle rod (1) and rear right-angle rod (2), wherein the front right-angle rod (1) and the rear right-angle rod (2) are centrally symmetrically arranged to form a square frame structure; A left telescopic rod assembly (3) connected between the short side of the rear right-angle rod (2) and the short side of the long side of the front right-angle rod (1); The right telescopic rod assembly (4) is connected between the short side of the front right-angle rod (1) and the long side of the rear right-angle rod (2); the right telescopic rod assembly (4) and the left telescopic rod assembly (3) are centrally symmetrical; Wherein, the left telescopic rod assembly (3) comprises: A left sliding rod (31) is slidably mounted on the short side of the rear right-angle rod (2) along the length direction of the short side of the rear right-angle rod (2); The left sliding block (32) is slidably mounted on the long side of the front right-angle rod (1) along the length direction of the long side of the front right-angle rod (1); the left sliding block (32) is fixedly connected to one end of the left sliding bar (31) close to the long side of the front right-angle rod (1).

2. The auxiliary tooling for laminating and assembling photovoltaic modules according to claim 1, characterized in that: A lower sliding groove (21) is provided on the lower side surface of the short side of the rear right-angle rod (2); guide grooves (211) are provided on the inner walls on both sides of the lower sliding groove (21); The left sliding rod (31) is slidably mounted in the lower sliding groove (21), and both sides of the left sliding rod (31) are provided with guide bars (311) that are slidably matched with the guide groove (211).

3. The auxiliary tooling for laminating and assembling photovoltaic modules according to claim 2, characterized in that: The upper side surface of the left sliding rod (31) is provided with an avoidance groove (312) arranged along the length direction of the left sliding rod (31).

4. The auxiliary tooling for laminating and assembling photovoltaic modules according to claim 1, characterized in that: The upper side surface of the long side of the front right-angle rod (1) is provided with a "convex"-shaped upper slide groove (11), and a raised guide rail (111) is provided in the middle of the upper slide groove (11); The left sliding block (32) is arranged in the upper sliding groove (11), and two rows of guide wheels (321) are rotatably mounted on the lower side of the left sliding block (32); the two rows of guide wheels (321) are respectively rollingly connected to the two sides of the guide rail (111).

5. The auxiliary tooling for laminating and assembling photovoltaic modules according to claim 1, characterized in that: One end of the left sliding block (32) close to the left sliding rod (31) is provided with a T-shaped stop, and the end of the left sliding rod (31) is buckled into the T-shaped stop and fixedly connected to the left sliding block (32) by means of bolts.

6. The auxiliary tooling for laminating and assembling photovoltaic modules according to claim 1, characterized in that: A left adjustment component (5) is connected between the short side of the rear right-angle rod (2) and the long side of the front right-angle rod (1); A right adjustment component (6) is connected between the short side of the front right-angle rod (1) and the long side of the rear right-angle rod (2), and the right adjustment component (6) and the left adjustment component (5) are centrally symmetrical; Wherein, the left adjustment component (5) comprises: A front guide rod (51), one end of which is fixed on the upper side surface of the long side of the front right-angle rod (1), and the other end of which extends to the left; A rear guide rod (52), one end of which is fixed on the upper side surface of the short side of the rear right-angle rod (2), and the other end of which extends to the left; the rear guide rod (52) is parallel to and opposite to the front guide rod (51); A sliding sleeve (53) is slidably mounted on the front guide rod (51); a fastening screw (531) is threadedly connected to the sliding sleeve (53) for positioning the sliding sleeve (53) on the front guide rod (51); A pair of mutually parallel connecting rods (54) has one end hinged on the sliding sleeve (53) and the other end hinged on the rear guide rod (52); the two connecting rods (54) and the sliding sleeve (53) and the rear guide rod (52) form a parallelogram structure.

7. The auxiliary tooling for laminating and assembling photovoltaic modules according to claim 6, characterized in that: A limiting mechanism (7) is provided between the connecting rod (54) close to the front right-angle rod (1) and the rear guide rod (52); The limiting mechanism (7) comprises: A guide block (71) is slidably mounted on the rear guide rod (52) along the length direction of the rear guide rod (52); the guide block (71) and the sliding sleeve (53) are opposite to each other in front and back; A linkage rod (72) has one end hinged to the middle of the connecting rod (54) near the front right-angle rod (1), and the other end hinged to the guide block (71).

8. The auxiliary tooling for laminating and assembling photovoltaic modules according to claim 7, characterized in that: The upper side of the rear guide rod (52) is provided with a stepped guide groove (521), and racks (522) are respectively fixed on both sides of the guide groove (521); The guide block (71) is slidably mounted in the guide groove (521), and a gap is left between the two sides of the guide block (71) and the rack (522) on the corresponding side; a bistable spring sheet (711) is fixed on each side of the guide block (71), and one end of the bistable spring sheet (711) away from the guide block (71) has a locking tooth (712) that cooperates with the rack (522); When the bistable spring piece (711) is in the first stable state, the locking teeth (712) at the end of the bistable spring piece (711) cooperate and embed into the rack (522) on the corresponding side; When the bistable spring sheet (711) is in the second stable state, the locking tooth (712) at the end of the bistable spring sheet (711) is disengaged from the rack (522) on the corresponding side.

9. The auxiliary tooling for photovoltaic module lamination assembly according to claim 1, characterized in that: Handles (8) are respectively fixed at the corners of the front right-angle rod (1) and the rear right-angle rod (2).